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STOCK-BASED COMPENSATION (Tables) | 9 Months Ended
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Sep. 30, 2021
STOCK-BASED COMPENSATION [Abstract] |
Weighted-Average Assumptions Used for Grants Issued | The following weighted-average assumptions were used for grants issued during the three and nine months ended September 30, 2021:
|  | Three months ended September 30, 2021 |  |  | Nine months ended September 30, 2021 |
Weighted average risk-free rate |  |  | 0.97 | % |  |  | 1.06 | %
Weighted average volatility |  |  | 143.29 | % |  |  | 134.88 | %
Dividend yield |  |  | 0 | % |  |  | 0 | %
Expected term |  | 6.08 years |  |  | 6.08 years |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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